Back Bonding in Chemistry

 I was teaching my students the concept of back bonding in chemistry class. Back bonding is a chemical phenomenon in which electrons pass from one atom's atomic orbital to an acceptor (ligand). The metal's electrons are used to bind to the ligand, relieving the metal of excess negative charge in the process. I  summarized my lesson in the form of a poem. The same I am listing below for my esteemed readers.

I am Carbon #monoxide(CO), a daughter

Transition#Metal(TM) is my mother

  She is special as she has d electrons in her outermost orbit.

I, CO, wish to be together with my #mother (TM)

To do so, I form a sigma bond by overlap

Of my non-bonding (or weakly anti-bonding)

 sp-hybridized #electron pair on my carbon

With a blend of d-, s-, and #p-orbitals on the TM -My mother

 

After the formation of the #sigma bond,

There is an overlap of filled d-orbitals on the TM (mother)

 With a pair of #pi- antibonding orbitals

 Projecting from the carbon atom of  me (CO),

This bonding is from #TM to CO

Rather than usual from CO to TM

It involves pi orbitals.

This phenomenon is called #pi back bonding(BB)

The compound formed with BB of d electrons has pi bonding character.

Through BB, the TM-carbon (part of me) bond is strengthened

Sukarma Thareja 

India

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Mystic Tree

 I was asleep suddenly a small green tree came to me and started talking to me.

Most #astonishing part was that the tree was talking to me in the form of a poem. I  was surprised to see a talking tree.

I am listing below a poem which short green tree with small leaves, #recited for me.

"I am a tree of  average height bearing fruits,

Shining in daylight; red-yellow are my fruits;

In #colder region of the country

I grace every house front lawn,

I act as  #sun screen

And give #shadow green to every lawn.  

I sustain at little low

 Temperature – weather; spring/winter.

I bear Fruits full with #iron contents ,

My fruit has #low GI ,and is recommended by doctors,

As part of lunch/ breakfast, for children, #adolescents,

Adults, citizen senior and diabetic patients.

 

My country men respect  and #protect me,

 They always remember that,

If  they cut my stem,

and  pluck my #raw fruits,

then I –their #favourte fruit,

 tree will be no more,

then #ground water they are getting,

will also be no more.

 

My country men are proud of me,

I am also proud of them,

Friends you recognized me right, 

When you eat my #fruit a day,

It keeps a doctor away,

Friends I am an Apple Tree! 

I salute and bless all my country men,

 For their kind acts fondly.---------"

I breathe in #de Oxygenated air,

With the help of #sun king rays,

And #chlorophyll in my green queen leaves,

 #Photosynthesis reaction takes place,

I breathe out #oxygenated air,

To give my countrymen,

   breath of fresh air.

fondly.---------"

Suddenly, I heard an alarm on my clock. I woke up and was confused for some time, thinking maybe an apple tree was meditating, and in dream I could listen to its #meditating language. I soon realized that the tree talking to me in a dream was nothing but an apple tree. I am still not clear how a tree could talk to me in a dream, and that too it picked up "a poem form" to talk in my dreams. I must say it was a very good dream as it gave me #mystical experience.

Sukarma Rani Thareja

Acid A cooking King

 I was teaching science at school. In chemistry class, I showed students a bottle of acid. In the chemistry lab, I did a simple experiment and showed students the physical and chemical properties of Acid. To make my lesson interesting, I taught students how, in cooking procedures, we do use acids to make food tasty and boost immunity. To clear the salient points of my lecture, I wrote a poem entitled "Acid- Equaliser- Immunity Booster" and pasted it on the notice board of my school. The same I am listing below for my esteemed readers.

Acid- Equaliser- Immunity Booster

 

Sourness—sourness ! in food guys,

It is #conjecturing our faces, guys.

Don’t worry dear, sourness is due to me, guys.

I am acid,

I contain hydrogen ions,

I am sour in nature, friends.

In fruits, lemon and  orange,

I am acid citric,

In #Tamraid I am acid #tartaric,

 In yogurt, I am acid #lactic,

In green apples, I am acid  #Malic.

 

My Sourness in food,

It is detected by your taste buds, friends.

They are present on your tongue-sides.

 

I(acid) actually brightens your food flavors,

I energize dishes and reduce their  greasiness,

I can reduce seafood, #aroma characteristics.

I prevent the browning of cut vegetables,

By slowing the enzyme that causes this,

My acidity is measured through scale of #Ph

Acidity for me (acid) measures on a scale of 0-7 pH.

 

In #Bollywood films,

My image is very bad,

Sometimes I am used as a destructive tool,

 By #villain of the film,

But friends for you,

I am actually very good,

My presence in food,

 Make you salivate.

It makes it easier for you,

To digest what you eat.

 

In the second wave of Corona,

Which was going on with swing full,

It was advisable to use citrus fruits,

Acid present in citrus fruits,

Boost the immune system to extent.

 

Acid, you act as an equalizer in my food,

Your place in cooking is like a king,

You balance out taste of sweet and salt,

You overall prevent any taste,

 Dominate in any dish.

 

Thank you, my friend Acid,

For being so nice and kind,

Helping with our immunity boost,

In the time corona difficulty,

My friend Equalizer,

and my family salutes,

You are respected for all you do.

To maintain our good health.

Thank you, my friend Acid,

For being so nice and kind,

Helping with our immunity boost,

In the time corona difficulty,

My friend Equalizer,

Me My family and salute,

You are respected for all you do.

To maintain our good health.

Dr Sukarma Rani Thareja

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Wish of Mother Rani

  

 Wish of Mother  Rani

It is very difficult for Rani to forget the formula which decides gender formation, ie, male/female in any species, ie, xx=xy (pair of chromosomes), which she was taught in tenth class by her biology teacher. Why this formula haunts Ms Rani till today is a million dollar question. She cannot forget how, under pressure from her mother-in-law and husband, she got herself aborted a few times, because she was carrying a baby girl. To some extent, she was also party to that awful decision.

She understands what she did was a sin—— and she was morally incorrect. But why did she take this decision? She has no concrete convincing answer to herself till today. The fact that she cannot share this black truth of her life with anyone in this world, even with her own dear and near ones, is a big pain for her. Rani knows that valid questions like—Are you mad, Rani?—What is the point in getting so much education if you can’t face the world?-etc—etc will be raised if she shares this secret with anyone, even if they are her own sisters. It is also a fact that all said and done, she is not ready to become a mother to her second daughter at any cost. When she looks back on her own journey, those sad dark patches of her life journey and unhappy experiences that make her reinforce her decision, that is what action she took was right, though it is painful for her till today.

Rani works as a helper in the canteen of a famous women's college in Delhi, and happens to get a platform for interaction with women coming from different walks of life. During many meaningful conversations, they convey to her that the time has come for Indians will study the necessary and sufficient conditions of this genetic formula, xx=xy. And very soon will implement those conditions in Indian society, in such a way that each citizen of’ India today ‘will feel pride, comfortable and will get equal rights and opportunity. 

For Rani, it is nothing but a dirty joke. She knows that for states of her country like Haryana and Punjab, formula xx<xy.

Enough is enough, but Rani is still waiting after 75 years of independence, that when we Indians, who boast of our cultural, spiritual and science- technical know how heritage, will come out from these conservative believes and assure ‘Aam nari’(ordinay Indian woman) like Rani that TV serials like ‘satyamev jayte’ will not get buried in history of India. When will ’ Aam nari’ (ordinary Indian woman) get justice from her own society, and will she feel proud in giving birth to a female child?

How will this be possible? Rani always asks these questions herself. Yes! It is possible, Rani, ‘didi ji’ in my college tells me, if we all sincerely salute to blessings of motherhood and count our blessings and recognize the talent, beauty and importance of a little bundle of joy and change our mental setup.

Rani is hopeful and still waiting for that new auspicious morning—

Sukarma Rani Thareja

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Cooking Makes Family Creative

 Now decades later, I’m the cook in my family so the daughter-in-law (my wife) doesn’t have to cook. Don’t get me wrong, she’s a great cook, too. I just like to cook. It’s therapeutic. And my married son is also the cook in his family. The daughter-in-law can also cook. But she doesn’t have to.

Being forced into pre-1960’s stereotypes is a sure fire way to cause tension in any marriage. There’s nothing in a woman’s DNA that make it her “responsibility to cook”. And, frankly, it’s none of your business who in their marriage cooks. Leave them alone and let them make their own way. And, if you don’t like the food, you don’t have to go there.

I have listed below my poem "Wonderful is Cooking Activity"

Wonderful is Cooking activity,

In my family,

Sometimes I cook,

Sometimes my husband cooks,

Sometimes my daughter-in-law cooks.

Therapeutic is a cooking activity,

There is nothing in a woman's DNA,

That makes it her responsibility to 

cook,

In India, people are always anxious,

To know who cooks in another family,

Is it fair to do so?

Please leave alone,

That respected Integrated family,

And let them make their own way,

 If somehow you,

Can't appreciate  their  cooking,

Please do not  make this cause of tension,

Best not to eat at their place,

Let them enjoy their cooking,

A peaceful activity,

That makes them Integrated,

creative family.

Sukarma Thareja 

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Quuote about criticism Sukarma Thareja

 

One should not melt with praise, nor boil with criticism. Keep performing your duty selflessly. Because everything of this earth will remain on this earth." 

Secret of My granny's Sharp Memory

 

My dear granny goes to the temple,

 To light candles before God,

 She prays on bended knees for our well-being,

My dear granny cooks food for me every day,

People say Granny does her routine duty,

But friends more than routine duty,

 She is more exposed to the same activity,

Like a golfer practicing a swing thousands of times.

 That makes stronger connections,

 Between neurons in Granny’s brain,

In return, she gets a gift of God-good Memory.

The fact is each of the brain’s 100 billion nerve cells,

 It can have 10,000 connections to other nerve cells.

These creative projects my granny does,

 Makes- synapses, creates new circuits,

 Between nerve cells, which essentially remaps her brain.

The sheer number of possible connections due to creative activities,

Gives granny’s brain unfathomable flexibility,

 And builds up functional reserves,

 That provides a safety valve against future cell-neuron loss,

That makes Granny’s memory strong.

 

People also ask me how come your granny,

 Is so active and energetic with sound memory,

The secret is that my granny also does challenging,

 Along with her routine duties with amicable joy,

She does creative activities like reading fiction and painting,

 Learns new skills to make her brain active and strong.

My granny avoids doing creative, challenging activities,

Then some parts of her brain’s neurons,

 Which are not being used regularly,

 Will automatically get pruned,

Granny’s brain will be in a state of mental pruning,

That will make Granny’s memory weak.

 

Friends! To retain good memory, a gift of God, the best is should remain.

 Engaged in creative activities like my granny,

 Let one's brain do challenging activities,

So to have a strong connection between neurons of the brain,

As memory is a game of connections,

Please do treasure this God-given gift of good memory.

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Sukarma Thareja

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